Simulation of methane production from hydrates by depressurization and thermal stimulation
Recently methane hydrates have attracted attention due to their large quantity on the earth and their potential as a new resource of energy. This paper describes a one-dimensional mathematical model and numerical simulation of methane hydrate dissociation in hydrate reserves by both depressurization...
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ftunivpadovairis:oai:www.research.unipd.it:11577/157584 2024-04-14T08:14:53+00:00 Simulation of methane production from hydrates by depressurization and thermal stimulation LIU Y STRUMENDO, MATTEO ARASTOOPOUR H. Liu, Y Strumendo, Matteo Arastoopour, H. 2009 STAMPA http://hdl.handle.net/11577/157584 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000263725200020 volume:48 firstpage:2451 lastpage:2464 numberofpages:14 journal:INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH http://hdl.handle.net/11577/157584 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-65349111973 info:eu-repo/semantics/article 2009 ftunivpadovairis 2024-03-21T19:20:01Z Recently methane hydrates have attracted attention due to their large quantity on the earth and their potential as a new resource of energy. This paper describes a one-dimensional mathematical model and numerical simulation of methane hydrate dissociation in hydrate reserves by both depressurization and thermal stimulation using a onedimensional radial flow system (axisymmetric reservoir). A moving front that separates the hydrate reserve into two zones is included in this model. A numerical coordinate transformation method was used to solve the moving boundary problem. The partial differential equations were discretized into ordinary differential equations using the method of lines. Our simulations showed that the moving front location and the gas flow rate production are strong functions of the well pressure and reservoir temperature. The impermeable boundary condition at the reservoir results in very low temperature at the moving front and the formation of ice. The formation of ice, which plugs the pore volume for the gas to flow, should be avoided. Compared with a stationary water phase model, our simulations showed that the assumption of a stationary water phase overpredicts the location of the moving front and the dissociation temperature at the moving front and underpredicts the gas flow rate. The thermal stimulation using constant temperature at the well method using a single well was found to have a limited effect on gas production compared to gas production due to depressurization. Article in Journal/Newspaper Methane hydrate Padua Research Archive (IRIS - Università degli Studi di Padova) |
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Padua Research Archive (IRIS - Università degli Studi di Padova) |
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ftunivpadovairis |
language |
English |
description |
Recently methane hydrates have attracted attention due to their large quantity on the earth and their potential as a new resource of energy. This paper describes a one-dimensional mathematical model and numerical simulation of methane hydrate dissociation in hydrate reserves by both depressurization and thermal stimulation using a onedimensional radial flow system (axisymmetric reservoir). A moving front that separates the hydrate reserve into two zones is included in this model. A numerical coordinate transformation method was used to solve the moving boundary problem. The partial differential equations were discretized into ordinary differential equations using the method of lines. Our simulations showed that the moving front location and the gas flow rate production are strong functions of the well pressure and reservoir temperature. The impermeable boundary condition at the reservoir results in very low temperature at the moving front and the formation of ice. The formation of ice, which plugs the pore volume for the gas to flow, should be avoided. Compared with a stationary water phase model, our simulations showed that the assumption of a stationary water phase overpredicts the location of the moving front and the dissociation temperature at the moving front and underpredicts the gas flow rate. The thermal stimulation using constant temperature at the well method using a single well was found to have a limited effect on gas production compared to gas production due to depressurization. |
author2 |
Liu, Y Strumendo, Matteo Arastoopour, H. |
format |
Article in Journal/Newspaper |
author |
LIU Y STRUMENDO, MATTEO ARASTOOPOUR H. |
spellingShingle |
LIU Y STRUMENDO, MATTEO ARASTOOPOUR H. Simulation of methane production from hydrates by depressurization and thermal stimulation |
author_facet |
LIU Y STRUMENDO, MATTEO ARASTOOPOUR H. |
author_sort |
LIU Y |
title |
Simulation of methane production from hydrates by depressurization and thermal stimulation |
title_short |
Simulation of methane production from hydrates by depressurization and thermal stimulation |
title_full |
Simulation of methane production from hydrates by depressurization and thermal stimulation |
title_fullStr |
Simulation of methane production from hydrates by depressurization and thermal stimulation |
title_full_unstemmed |
Simulation of methane production from hydrates by depressurization and thermal stimulation |
title_sort |
simulation of methane production from hydrates by depressurization and thermal stimulation |
publishDate |
2009 |
url |
http://hdl.handle.net/11577/157584 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000263725200020 volume:48 firstpage:2451 lastpage:2464 numberofpages:14 journal:INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH http://hdl.handle.net/11577/157584 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-65349111973 |
_version_ |
1796313124065771520 |